Draft-rigging.



J. A.'JAGKSUN.

DRAFT BIGGING.

APPLIGATION FILED 1111111.91 190s.

Patentd Aug. 16,1910.

IN VEN TOR Wl TNESSES.

A TTORNE YS conn A. JACKSON, on'v CHICAGO, rumors, Assronoza onoNnHALn-:ro nnn'rnn. i.,

. PHIPPsOF CHICAGO, rumors. l

` DRAM-mesmo.

speemann of Letters rafent.

Application led March 9, Serialllo. 419,883.

To all whom it may concern:

Be it known that I, J OHN A. JACKSON, a citizen vof the United StatesofY America, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inDraftRigging, of which the following is a Specification, reference beinghad therein to the accompanying drawings.

It is desirable that the thrust and pull of the couplers of a car be,carried to its main or longitudinal sills in a direct line and bedistributed among them as evenly as possible. It is alsopreferable thatany yshocks or strains in excess of the capacity of the shocleabsorbingappliances in the draft rigging be conveyed likewise to the members ofthe frame by a rigid, continuous or solid connection. It is further anadvantage if the absorption Or cushioning members, usually springs, beunder the same direction of strain, `either pulling o1' buiing, and be vall acted on simultaneously.

This invention relates toa draft rigging wherein .the shock .absorbingor cushioning members are under compression, either in pulling, or. inbu'liing, and whereby all strains or shocks are carried directly to thebody bolster, and thus distributed evenly to the main sills, andwherebysubstantially continuous and rigid connections both for pnlliii or forbuiing are provided for transinitting strains or shocks above thevcapacity of the shock absorbers. i

This invention Consists in the matters hereinafter set forth, andm'ore'particularly pointed out in the appended claims.

In the drawings, Figure l is a view in side elevationl of a draftrigging embodying the invention, with the adjacent portion ofthe `cai."body, nia-in sills and body'bolster. Fig.

2 is a view in section on O r'about line :Jorv Fig. 1,'sl1owing; amodification 'of the manner of securing tlicieyebolts. 3 is aview in'cross section on linejg'je-g/.fof 'Figi `1l Referring .to thednaafings,1I indicates ,a 1 nair`1 sill, ZTancndsi fjfalbodybolster andtirnbersfof a railway car, all ,disposed Eril 4 the usual. inannerl iThe transversely 'slottedfinnerfendf'fof a",y standard couplerv 5 islongitudinallyreciprocable through thehead ijof a yoke'. akey 7"securedhin the coupler "perture ,playing in slots 28 in the sidesof savon head. 'oettespnse or like. Suaable stops, are provided in the keyends for holding thetkey in place, .the latter may,

if desired, extend through slots l0 in the draft timbers, as hereinindicated.' The usual stirrup or hanger -11 `supports the coupler. i

or stop' la, all preferably integrally formed.,

TheA latter, which Jforms an'abutmelit or stop for the yoke, is held bya transverse key ing the' key in place. The eyebolts draw the that it ispractically a part thereof# '.1

24, is reciprocable longitudinally in* the which it is yieldinglypressedby springs/25 in compression betweenthe rearend 12 of and similarstubs 26. on the vblockfact as spring keepers and as stopsliiniting' therelative lmovement' of thel yoke and f slide passing lthrough guideaertures in theyoke stop 14 are adapted to a ntrthestops'lof the Vfirstblock 20, and lcoaotI with them as block 20 normally projected. i f

the'forward slide block 20 anda similar key rocable iii-slots 29 `of apair of rioid draft' arecOnnected-by appropriate Inear'rsv to tlriencorresponding extended eyebolts from ,fthe other rigging; j Thus, ina/trainf, each vcarwis practically pullingl only its" own weight,

v coupling draws the train..

The rear end 12 of the yoke body which is' a substantially rectangularframe whose sides l13 lare connected by a 'middle cross-bar -and ribbedand liangedforstrength and. lightness,`is apertured to slide onhorizontal stubs 15 of a thrust member or block 16.`

17 and eye-bolts 18 that engage"the key outside the draft'timbers Il,cotter pins 19 lock-r A slide block 20 abutting the inner end; of thecoupler is reoiprocableA longitudinally in the frame ahead of the yokec'ross-stopzle and has stubs 2l in axial alinement `with the'thrust-block stubs 15. .A second slide blockV BB frame to the rear ofthe yoke stop 14" against'.V

keepers for springs 23 whiclrlioldtheslide extend to 'the center ofthecar whenthey los.

PATENT onnrCEf A Patented aug.' 1e, 191e;

thrust block against the body lbolster 43 so'- the yoke and the block;The guide stubs l5 block,""while other stubs 22 oni the :block 2t' A key27 through a suitable aperture 'iin 28 fined in the rear slide blockflarereciplinks 30 which connect themto tlie thrust? 'lim while thecontinuous arrangement ofthe dra v the most rigid part of a carconstruction to which to anchor the shock absorbing devices and totransmit all the pulling and buing 'strains after the spring capacity oftheVA draft rigging `has been exhausted or overcome. Furthermore, thefull action of all the springs is obtained both in pulling and buing',and this is done within the same 1i n'1it"-of motion as if only a singlespring `were used,`all the springs being brought into PlaySimultaneously,

When fully compressed, theV draft rigging presents a substantiallycontinuous solid connection in direct line with-the coupler thrustffromthe coupler to the body bolster so lthat/the latter receives thefinal'shock and arrests the coupler movement.

When desired the eye bolts 18 may be carried back to the center of thecar as indicated'in Fig. l. The draft timbers. are thus relieved of alllbuiing strains.,

Obviously, changes in the -construction may be made Without departingfrom the spirit of theinvention and I do not care to ran limit myself toany particular form or arement of parts.

at I..` claimas my invention is: y

1. 'A draft rigging for a car comprising a thrust. member rigidlysecured to the underframe of the car', rigid draft links "secured to thethrust member, a yoke movable longitudinally of the car, cushioningmeansv inthe yoke adapted to force thelatter against the thrust member,and a coupler having' limited longitudinally reciprocablemovemeiitintheyoke and abutting'the cush- V"ion'ing means. t

f .2.` A draft rigging for a car comprising a Vthrust member secured tothe underframe of the car, rigid draft links extending therefromlongitudinally of thecar, a yoke reciprocable on the thrust memberparallel to the links," a, coupler reciprocable in the yoke'longitudinally of the car, a cushioning member between-the coupler andyoke movable longitudinally in the yoke and links, and avsecondcushioning member between the yoke and thrust member movablelongitudinally in the yoke and links, said' cushioning members beingadapted to be simultaneously in l.con'ipressionbetween the yoke 4andlinks when the coupler is drawn out and to 4'form a substantiallycontinuous compression member between the coupler and thrust member whenthe coupler is moved in. v

3. In a car having body bolsters near each end thereof, draft riggineseach comprisin r a thrust member, rigid draft links secured to thethrust member, a `yoke movable longitudinally of the car, cushioningmeans, and a coupler having limited longitudinally reciprocable movementin the yoke and abutting said cushioning means, and means connecting thethrust members adapted to hold said thrust members against the outerside of the adjacent bolster, and to transfer the ull of each of saidmembers to the remote olster.

4. ,A draft rigging for a car com rising a thrust block secured to theunder rame of the car, a pair of rigid parallel links secured thereto, ayoke between the links whose inner end has slidin engagement with andabuts the block, a s ide block longitudinally reciprocable in the yokebetween its inner end and a middle stop on the yoke, springs incompression. between lthe block and the inner end of the yoke, atransverse key in the block Whose ends are reciprocable in longitudinalslots in the links, a second slide block longitudinally reciprocable inthe yoke between its head and the middle stop, springsy incompression'between the second block and middle stop, a transversekey'in the second block Whose ends are reciprocable in longitudinalslots in the links, a coupler whose inner end is longitudinallyreciprocable through the yoke head and abuts the second slide block, anda transverse key in the coupler whose ends are reciprocable inlongitudinal slots in the yoke head.

A draft rigging for a car comprising a thrust. block Asecured to theunderfranle of the car, a pair of rigid parallel links secured thereto,a yoke consisting of a substantially rectangular integral frame having atransverse bar forming a middle stop between the links whose inner endhas sliding engagement with and abuts the block, a slide blocklongitudinally reciprocable in the yoke between its inner end and themiddle stop on the yoke, springsy in compression between the block andthe inner end of the yoke, a transverse key inthe block whose ends arereciprocablel in longitudinal slots in the links, a second slide blocklongitudinally reciprocable in the. yoke` between its head and themiddle stop, springs in compression between the second block and middlestop, a transverse key in the second block whose ends are reciprocablein longitudinal slots in the links, a couplerwhose inner end islongitudinally reciprocable throufgh the yoke head and, abuts the secondsli e block, a transverse key in the coupler whose ends are reciprocablein longitudinal slots in the yoke head, and. stubs on the blocks andyoke in axial alinement acting as keepers-'for the springs andformingvsolid stubs between Athe blocks and yoke when the springs arecomressed andthe stubs are in contactunder urin strains.

, 6. hecombination withthe bolster v of a car of a draft `ri ingcomprising a thrust block on the outsid y transverse key therethrough,eye

eof the bolster, a bolts ex tending longitudinally of theA car through`the bolsteradapted 'to engage the block key lende and hold the blockagainst lthe bolster, a

pairv of rigid links whose inner apertured iends are engaged by thethrust block key, a yoke between the links whose inner end has slidingengagement with and abuts the block, a slide block longitudinallyreciproc'able in the'yoke between vits inner end and a middle l stoponthe yoke, springs in compression beverse key in the couplenwhose endsare res ciprocable in'longitudinal slots in the yoke heads.

7. The combination with the end sills,

` ner end has 'sliding abuts the block, a s,

in the second block whosemain sills and body bolsters of a car of draftriggngs each consisting of' a thrust block a vapted t'o be secured tothe outer side of a l bolster," a pair of rigid parallel links securedthereto, a yoke? between the links whose inen agement with and ide locklongitudinally reciprocablein the yokev between its inner end and amiddle stop on "the yoke, springs 1n compression between the block andtheinner end of theyoke, a transverse key inthe tudinal slots in thelinks, a second slide block longitudinally reciprocable in the yokebetween its head and the middle stop, springs in compression between the`secondb1ock and middle stop, .a transverse key inthe second block whoseends are reciprocable in l ngitudinal slots in the links a coupler yhoseinner end is longitudinally. reciprocable throu h the yoke head andabuts the second slide lock, a transverse key in the coupler whose endsare reciprocable in longitudinal slots 'in the yoke head, and eye boltsextending through the holsters ea'ch ofwhose vouter ends are connectedto a thrust block and whose inner ends are connected eachto each.

In testimony'whereofv I aiflx my signature in presence o ftwo witnesses.

i J A. JACKSON.

y Witnesses: H. J. SUMMERS, C. LEVINE.

4'5, block whose ends, are reciprocable in longi

